EP0437163A2 - Densifier and homogenizing cylinder for making sheets and pipes from asbestos cement - Google Patents

Densifier and homogenizing cylinder for making sheets and pipes from asbestos cement Download PDF

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Publication number
EP0437163A2
EP0437163A2 EP90500029A EP90500029A EP0437163A2 EP 0437163 A2 EP0437163 A2 EP 0437163A2 EP 90500029 A EP90500029 A EP 90500029A EP 90500029 A EP90500029 A EP 90500029A EP 0437163 A2 EP0437163 A2 EP 0437163A2
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EP
European Patent Office
Prior art keywords
cylinder
pipes
empatered
collector
towards
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP90500029A
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German (de)
French (fr)
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EP0437163A3 (en
Inventor
Emilio Galeano Garcia
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Individual
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Individual
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Publication date
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Publication of EP0437163A2 publication Critical patent/EP0437163A2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/42—Methods or machines specially adapted for the production of tubular articles by shaping on or against mandrels or like moulding surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/30—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon
    • B28B1/38—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon by dipping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/30—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon
    • B28B1/40—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon by wrapping, e.g. winding
    • B28B1/42—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon by wrapping, e.g. winding using mixtures containing fibres, e.g. for making sheets by slitting the wound layer

Definitions

  • This invention relates to an impasto cylinder, of those used in the manufacture of asbestos-cement plates and pipes, a cylinder which has been substantially improved to obtain excellent homogenization in the impasto, that is to say , an exact thickness of the stratum throughout the length of the cylinder, and this with a high impasto speed.
  • the impasto cylinder of considerable length and diameter, has a porous wall to allow the absorption of part of the water from which the raw material carries, thereby obtaining a stratum of greater concentration.
  • the cylinder to paste and homogenize that this invention offers has been designed and structured to solve this problem to full satisfaction, allowing to accelerate the impasto process and obtain an exactly constant thickness of the stratum throughout the length of the cylinder.
  • this cylinder incorporates, as means of expulsion for water, a plurality of pipes which form longitudinal alignments in correspondence with the generators of the cylinder, pipes which are all identical even in its length as in its diametrical dimension and which overturn on an internal collector, of rapid expulsion, with a slope of approximately 7%, so that the mass of water overturned by the pipes which occupy the positions of the ends of the cylinder do not interfere, given the slope mentioned for free expulsion through the successive pipes towards the midpoint of the cylinder.
  • this descriptive report is accompanied, as an integral part thereof, a single sheet of plans for guidance and not limitation and in its only figure, there is shown a partial side elevation view and also partial section, of a cylinder to paste and homogenize, for the manufacture of plates, and asbestos-cement pipes, carried out in accordance with the subject of the invention.
  • the water absorption capacity along the entire cylinder to be impasto is perfectly homogeneous, that is to say, that this capacity water absorption per unit area is constant throughout the periphery of the cylinder (1), which repercute that the thickness of the asbestos-cement layer obtained is also continuous throughout the entire surface of the cylinder and that in addition the pasting operation can be carried out with greater speed.

Abstract

A coating/homogenising cylinder, especially has an inner water absorbing layer (2) and a series of short radial tubes (3) of substantial diameter which are set in annular and lengthwise lines and pass through an inclined partition (5), forming a collector of varying height. The system of radial pipes provides for a constant level of water absorption along the length of the cylinder and makes for a more homogenous material.

Description

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

Cette invention se rapporte à un cylindre à empâter, de ceux que l'on utilise dans la fabrication de plaques et tuyeaux en amiante-ciment, cylindre qui a été sensiblement perfectionné pour obtenir une excellente homogénéisation dans l'empâtement, c'est à dire, une épaisseur exacte du strate dans toute la longueur du cylindre, et celà avec une haute vitesse d'empâtement.This invention relates to an impasto cylinder, of those used in the manufacture of asbestos-cement plates and pipes, a cylinder which has been substantially improved to obtain excellent homogenization in the impasto, that is to say , an exact thickness of the stratum throughout the length of the cylinder, and this with a high impasto speed.

ANTECEDENTS DE L'INVENTIONBACKGROUND OF THE INVENTION

Comme il est déjà connu, dans la fabrication de plaques et tuyeaux en amiante-ciment, on utilise des cylindres à empâter qui "mouillent" dans une pâte de matière première avec un haut contenu en eau, de façon que cette matière première colle au cylindre à empâter, que postérieurement l'envoi à un autre cylindre à conformer, où l'on obtient directement le tuyeau, dans le cas où il s'agit d'un élement de ce type, où on soumet à ce tuyeau à une coupure sur une de ses génératrices pour obtenir une plaque, que dans le cas d'être ondulée se dépose à la suite sur une surface avec cette configuration, où sera soumise à un effet de vibration.As is already known, in the manufacture of asbestos-cement plates and pipes, impasto rolls are used which "wet" in a paste of raw material with a high water content, so that this raw material sticks to the cylinder to paste, only afterwards sending it to another cylinder to be conformed, where the pipe is obtained directly, in the case where it is an element of this type, where this pipe is subjected to a cut on one of its generators to obtain a plate, which in the case of being corrugated is deposited subsequently on a surface with this configuration, where will be subjected to a vibration effect.

Le cylindre à empâter, d'une longueur et diamètre considérables, presente une paroi poreuse pour permettre l'absorption d'une partie de l'eau de laquelle la matière première est porteuse, obtenant de cette façon un strate de plus grande concentration.The impasto cylinder, of considerable length and diameter, has a porous wall to allow the absorption of part of the water from which the raw material carries, thereby obtaining a stratum of greater concentration.

Cependant et étant donné que l'eau absorbée par le cylindre à empâter est évacuée par les extrèmes de celui-ci, evidentment il existe une plus grande facilité d'évacuation d'eau dans les zônes des extrémités du cylindre, facilité d'évacutaion qui diminue progressivement dès ces zônes des extrémités vers sa zône moyenne, ce qui fait que le strate obtenu ne soit pas homogène, concrètement plus dense dans ses zônes des extremités que dans sa zône moyenne, où il n'a par pu dissiper la même quantité d'eau.However, since the water absorbed by the cylinder to be pasted is evacuated by the ends thereof, obviously there is a greater ease of evacuation of water in the areas of the ends of the cylinder, ease of evacuation which gradually decreases from these end zones towards its medium zone, which means that the stratum obtained is not homogeneous, concretely more dense in its end zones than in its medium zone, where it has not been able to dissipate the same quantity of 'water.

DESCRIPTION DE L'INVENTIONDESCRIPTION OF THE INVENTION

Le cylindre à empâter et homogénéiser que cette invention propose a été conçu et structuré pour résoudre ce problème à pleine satisfaction, permettant accélerer le procès d'empâtement et obtenir une épaisseur exactement constante du strate dans toute la longueur du cylindre.The cylinder to paste and homogenize that this invention offers has been designed and structured to solve this problem to full satisfaction, allowing to accelerate the impasto process and obtain an exactly constant thickness of the stratum throughout the length of the cylinder.

Pour celà et plus concrètement ce cylindre incorpore, comme moyens d'expulsion pour l'eau, une pluralité de tuyeaux qui forment des alignements longitudineaux en correspondance avec les génératrices du cylindre, tuyeaux qui sont tous identiques même dans sa longueur comme dans sa cote diamétrale et qui renversent sur un colecteur intérieur, d'expulsion rapide, avec une pente d'approximativement le 7%, de façon que la masse d'eau renversée par les tuyeaux qui occupent les positions des extremités du cylindre n'interfèrent pas, étant donné la pente mentionnée à la libre expulsion à travers les successifs tuyeaux vers le point moyen du cylindre.For this and more concretely this cylinder incorporates, as means of expulsion for water, a plurality of pipes which form longitudinal alignments in correspondence with the generators of the cylinder, pipes which are all identical even in its length as in its diametrical dimension and which overturn on an internal collector, of rapid expulsion, with a slope of approximately 7%, so that the mass of water overturned by the pipes which occupy the positions of the ends of the cylinder do not interfere, given the slope mentioned for free expulsion through the successive pipes towards the midpoint of the cylinder.

De cette façon, tous le tuyeaux d'expulsion se trouvent exactement dans les mêmes conditions opératives, donc l'expulsion d'eau se produit de façon homogène dans toute la surface du cylindre et, par conséquent, il est aussi homogène l'épaisseur du strate dans cette surface.In this way, all the expulsion pipes are in exactly the same operating conditions, therefore the expulsion of water occurs homogeneously throughout the surface of the cylinder and, therefore, it is also homogeneous the thickness of the stratum in this surface.

DESCRIPTION DES DESSINSDESCRIPTION OF THE DRAWINGS

Pour completer la description qu'on est en train de faire et à l'objet d'aider à une meilleure compréhension des caractéristiques de l'invention, on accompagne à ce rapport descriptif, comme partie intégrante de celle-ci, une seule feuille de plans qu'à titre orientatif et non limitatif et dans sa seule figure, on a representé une vue partielle levée latéral et coupe aussi partielle, d'un cylindre à empâter et homogénéiser, pour la fabrication de plaques, et tuyeaux en amiante-ciment, réalisé d'accord à l'objet de l'invention.To complete the description which is being given and with the object of helping to better understand the characteristics of the invention, this descriptive report is accompanied, as an integral part thereof, a single sheet of plans for guidance and not limitation and in its only figure, there is shown a partial side elevation view and also partial section, of a cylinder to paste and homogenize, for the manufacture of plates, and asbestos-cement pipes, carried out in accordance with the subject of the invention.

REALISATION PREFERENTE DE L'INVENTIONPREFERRED EMBODIMENT OF THE INVENTION

A la vue de cette figure on peut observer comme le cylindre à empâter et homogénéiser (1) qu'on préconise, presente, inmédiatement dans l'intérieur de sa couche (2) d'absorption d'eau, une pluralité de tuyeaux courts (3), d'un diamètre considérable, identiques entre eux, qui forment des alignements mêmes longitudinaux comme anulaires, sortant ces tuyeaux (3) d'une paroi fermée (4) qui tari plus loin d'un colecteur (5) qui adopte une configuration tronc-cônique dans chacune des deux moitiés du cylindre (1), en divergeant vers ses extremités, de façon que, comme on peut voir dans la figure, dans chacune de ces moitiés le mentionné colecteur configure une pente d'approximativement un 7%, et de telle façon que le mentionné colecteur se situe près de l'embouchure des tuyeaux (3) plus intérieurs, où le débit global de l'eau à travers ce colecteur est minimum, dans les tuyeaux (3) prochains aux embouchures du cylindre, ce colecteur se situ practiquement dans la base de ceux-cis, ce qui permet que le grand débit d'eau de cette zône, le total du débit unitaire de tous les tuyeaux de cette moitié du cylindre, n' interfère pas à la sortie d'eau à travers de ces tuyeaux (3) des extremités.At the sight of this figure we can observe like the cylinder to be pasted and homogenized (1) that we recommend, present, immediately in the interior of its water absorption layer (2), a plurality of short pipes ( 3), of considerable diameter, identical to one another, which form the same longitudinal as anular alignments, leaving these pipes (3) from a closed wall (4) which dried up further from a collector (5) which adopts a truncated-conical configuration in each of the two halves of the cylinder (1), diverging towards its ends, so that, as we can see in the figure, in each of these halves the mentioned collector configures a slope of approximately 7% , and in such a way that the mentioned collector is located near the mouth of the more interior pipes (3), where the overall flow of water through this manifold is minimum, in the pipes (3) next to the mouths of the cylinder , this collector is located practically in the base d e these, which allows that the large flow of water from this area, the total of the unit flow of all the pipes of this half of the cylinder, does not interfere with the exit of water through these pipes ( 3) extremities.

On obtient de cette façon, d'accord avec l'objectif de l'invention, que la capacité d'absorption d'eau au long de tout le cylindre à empâter soit parfaitement homogène, c'est à dire, que cette capacité d'absorption d'eau par unité de surface soit constante dans toute la périphérie du cylindre (1), ce qui repercute que l'épaisseur du strate en amiante-ciment obtenu soit continu aussi dans toute la surface du cylindre et qu'en plus l'opération d'empâtage puisse se faire avec une plus grande vitesse.It is obtained in this way, in accordance with the objective of the invention, that the water absorption capacity along the entire cylinder to be impasto is perfectly homogeneous, that is to say, that this capacity water absorption per unit area is constant throughout the periphery of the cylinder (1), which repercute that the thickness of the asbestos-cement layer obtained is also continuous throughout the entire surface of the cylinder and that in addition the pasting operation can be carried out with greater speed.

On ne considére pas nécéssaire de faire plus étendue cette description pour que quelconque personne experte en la matière puisse comprendre l'atteinte de l'invention et les avantages que de celle-ci se découlent.It is not considered necessary to make this description more extensive so that any person who is expert in the matter can understand the attainment of the invention and the advantages derived from it.

Le matériaux, forme, dimension et disposition des éléments seront susceptibles à des variations quand celà ne suppose pas une altération en ce qui est essentiel pour l'invention.The materials, shape, size and arrangement of the elements will be susceptible to variations when this does not suppose an alteration in what is essential for the invention.

Les termes dont on a rédigé ce rapport devront être pris dans son ample sens et sans limites.The terms from which this report was written should be taken in its broad and limitless sense.

Claims (1)

Cylindre à empater et homogénéiser pour la fabrication de plaques et tuyeaux en amiante-ciment, caractérisé essentiellement par le fait qu'il incorpore, immédiatement dans l'intérieur de sa couche d'absorbtion et sortant d'une paroi cylindrique et fermée, une pluralité de tuyeaux qui traversent cette paroi cylindrique, identiques entre eux, distribués uniformément en formant des alignements longitudinaux périmétriques au sein du cylindre à empater, étant prévu que ces tuyaux se renversent sur un colecteur d'expulsion rapide, qui configure deux secteurs tronc-coniques et opposés, qui affectent les deux moitiés du cylindre à empater et qui sont divergents à partir de la zone moyenne de ce dernier vers les zones de ses extrémités, ce colecteur étant traversé par les tuyeaux d'absorbtion d'eau sus-mentionnés, lesquels le surpassent à plus grande échelle progressivement vers les extrémités libres du cylindre à empater vers lesquels ce colecteur détermine une pente d'approximativement 7%.Cylinder to be empatered and homogenized for the manufacture of asbestos-cement plates and pipes, essentially characterized by the fact that it incorporates, immediately into the interior of its absorption layer and emerging from a closed cylindrical wall, a plurality of pipes which pass through this cylindrical wall, identical to each other, distributed uniformly by forming perimetric longitudinal alignments within the cylinder to be empatered, it being provided that these pipes overturn on a rapid expulsion manifold, which configures two truncated-conical sectors and opposite, which affect the two halves of the cylinder to be empatered and which are divergent from the middle zone of the latter towards the zones of its ends, this collector being traversed by the above-mentioned water absorption pipes, which the gradually surpass on a larger scale towards the free ends of the empater cylinder towards which this collector determines a p approximately 7%.
EP19900500029 1990-01-08 1990-03-27 Densifier and homogenizing cylinder for making sheets and pipes from asbestos cement Withdrawn EP0437163A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9000041 1990-01-08
ES9000041A ES2020747A6 (en) 1990-01-08 1990-01-08 Densifier and homogenizing cylinder for making sheets and pipes from asbestos cement.

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EP0437163A2 true EP0437163A2 (en) 1991-07-17
EP0437163A3 EP0437163A3 (en) 1991-08-21

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EP19900500029 Withdrawn EP0437163A3 (en) 1990-01-08 1990-03-27 Densifier and homogenizing cylinder for making sheets and pipes from asbestos cement

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ES (1) ES2020747A6 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2776224A1 (en) * 1998-03-20 1999-09-24 Kerlane Method of molding ceramic fiber articles

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1684615A (en) * 1923-06-13 1928-09-18 Beloit Iron Works Vacuum pipe connection for cylinder machines
US1856081A (en) * 1927-04-18 1932-05-03 Valley Iron Works Company Cylinder paper machine
GB962207A (en) * 1962-03-02 1964-07-01 Voith Gmbh J M Apparatus for dewatering suspensions
FR1382322A (en) * 1963-11-08 1964-12-18 Ct De Rech S De Pont A Mousson Advanced machine for the manufacture of asbestos cement sheets and pipes
DE1904242A1 (en) * 1968-01-30 1969-09-04 Voith Ag J M Device for the production of pipes
DE2144102A1 (en) * 1970-09-10 1972-03-23 Improved Machinery Inc., Nashua, N.H. (V.St.A.) filter
US4333836A (en) * 1979-04-30 1982-06-08 Voith S.A. Cellular drum filter for the dewatering of fiber suspensions

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1684615A (en) * 1923-06-13 1928-09-18 Beloit Iron Works Vacuum pipe connection for cylinder machines
US1856081A (en) * 1927-04-18 1932-05-03 Valley Iron Works Company Cylinder paper machine
GB962207A (en) * 1962-03-02 1964-07-01 Voith Gmbh J M Apparatus for dewatering suspensions
FR1382322A (en) * 1963-11-08 1964-12-18 Ct De Rech S De Pont A Mousson Advanced machine for the manufacture of asbestos cement sheets and pipes
DE1904242A1 (en) * 1968-01-30 1969-09-04 Voith Ag J M Device for the production of pipes
DE2144102A1 (en) * 1970-09-10 1972-03-23 Improved Machinery Inc., Nashua, N.H. (V.St.A.) filter
US4333836A (en) * 1979-04-30 1982-06-08 Voith S.A. Cellular drum filter for the dewatering of fiber suspensions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2776224A1 (en) * 1998-03-20 1999-09-24 Kerlane Method of molding ceramic fiber articles
WO1999048661A1 (en) * 1998-03-20 1999-09-30 Carborundum France Thin mineral fibre components, method and mould for making same by vacuum suction

Also Published As

Publication number Publication date
EP0437163A3 (en) 1991-08-21
ES2020747A6 (en) 1991-09-16

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